John's height increased from 5'2" to 5'7" during the psast year. What is the rate of increase (to the nearest whole percent) of John's hight over the past year?
I know that when finding rate I need to Rate x base = amount
My question is I am stuck on which one is the base and which one is the amount?
I think that 5'7" is the base and 5'2" is the amount am I correct or am I looking at this completely wrong?
2007-06-05 07:22:45 · 10 answers · asked by marianne d 2 in Science & Mathematics ➔ Mathematics
might be easier to figure when converting to inches
5'2" = 62in
5'7" = 67in
increase = 67-62 = 5
rate of increase = 5/62 (*100) = 8%
2007-06-05 07:26:43 · answer #1 · answered by romasuave1 2 · 0⤊ 0⤋
Rate is your unknown percentage - base is the 5'2" - and amount is 5'7"
With the heights converted to inches, the formula of yours would read -
X * 62 = 67
/62 = /62
X = 1.08 (rounded)
Once you take off the whole number of ONE (since you are only looking for the percent of increase) you are left with 8%
2007-06-05 07:26:54 · answer #2 · answered by ycartf 2 · 0⤊ 0⤋
Put them in inches. 5'2" is 62 inches, and 5'7" is 67 inches. So the rate of increase is 5 inches per year. In percentages, that is 5/62 % growth per year.
2007-06-05 07:27:55 · answer #3 · answered by micahcf 3 · 0⤊ 0⤋
5'2 is the base
and 5'7 is the amount.
Base=62 inches
amount=67 inches
increase=5 inches
rate of increase= 5/62=8.06%
2007-06-05 07:28:11 · answer #4 · answered by sweet n simple 5 · 0⤊ 0⤋
5'2" = 62"
5'7" = 67"
5/62= 8%
HIS HEIGHT INCREASED BY 8% OVER THE PAST YEAR
rate = 1.08
62 * 1.08= 67
2007-06-05 07:31:17 · answer #5 · answered by Marty B 2 · 0⤊ 0⤋
Hi. Convert to inches first. 5' 2" is the starting point but 0 is the base.
2007-06-05 07:26:13 · answer #6 · answered by Cirric 7 · 0⤊ 0⤋
rate = (change in height) / (change in time)
= ( +5 inches ) / (1 year) = 5 in/yr
% rate of increase = ( 5 in/yr ) / (62 in) = 0.080645... /yr
= 8% /yr rounded.
2007-06-05 07:27:23 · answer #7 · answered by jcsuperstar714 4 · 0⤊ 0⤋
I think its about 11% not sure
2007-06-05 07:26:49 · answer #8 · answered by Hoooyahhh 2 · 0⤊ 0⤋
( 5.7 - 5.2 ) / 5.2
=0.5 / 5.2 = 0.096 aprox. 0.1
which means 10%
2007-06-05 07:28:52 · answer #9 · answered by Anonymous · 0⤊ 0⤋
wow!
2007-06-05 07:26:16 · answer #10 · answered by mehdi 2 · 0⤊ 0⤋